Spring structure



March l, 1932. A. H. WITTENBERG sTocKING` Filed June 30, 1930 Patented Feb. 23, 1932 UNITED STATES PATENT OFFICE GEORGE A. STACKHOUSE, F OAKLAND, CALIFORNQIA, .AS-SIGNOR TO L. A. YGUNG SPRING AND WIRE CDRPORATION, OIF BEAIROIT,` MICHIGAN S2RING- STRUCTURE application .sied February 2e, reso. serial No. 431,400.

rthe main objects of this invention are:

First, to provide a spring structure which is well adapted for use as a. mattress or cushion filler.'

Second, to provide a spring structure of this character which presents a substantially smooth surface, that is, there are no projections likely to injure or wear the upholstery portion. of the mattress.

'i`hird, to provide a spring structure of the class described in which the body springs are eectively supported in upright spaced relation and at the same time are yieldably con` nected for tree movement and so that move- A ment of the springs is not lilrely to cause noise.

Fourth, to provide a structure having these advantages which is economica-l to produce and one which permits certain assembling operations by machinery.

Ubjeots relating to details and economies of my invention will appear from the description to Jfollow. The invention is defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is illustrated in the accompanying drawings, in which:

Fig. l is a fragmentary plan view oi a spring structure embodying the features of my invention, parts being arranged to show the method ci assembling Fig. 2 is an enlarged detail View' on line QM-.2 of Fie, l.

3 is fragmentary view illustrating 1 of assembling.

is a. fragmentary view illustrating' r method of assembling. ln 'the accompanying drawings have illustrated only fragmentary portions of a mattress tiller spring structure.

My improved spring structure comprises heiicall coiled body springs l arranged in rows, corresponding springs of the rows being n also arranged in alignment. The end or terminal coils oi: these body springs terminate in laterally disposed terminals 3 while opposite these terminals the top coils have offsets 4 of substantial length, these offsets being straight as illustrated. lV ith the springs of the several rows arranged in alignment these offsets are brought into alignment.

The terminals 3 of one of the springs of a row are loosely coiled about the offsets of an adjacent spring of the row, the coils 5 being spiral and open as shownin the drawings. This provides a loose pivotal con nection for the several springs of the row.

The helically coiled spring cross members 6 are rotated to engage coils thereof with the oilsets, with coils of the cross members lying between the coils 5 of the tie members and between these coils 5 and the ends of the offsets, so that the tie members are supported laterally on the offsets by coils'oi` the cross members and the coils ofthe cross members do not interfere with the pivotal movement of the springs of the rows relative to each other, and the aligned springs in the rows are yieldably connected by these spring cross members.

rl'he tie members 3 may be coiled about the offsets either before or after the cross members are engaged with the offsets.-

In Fig. 3 I illustrate the method of assembling in which the cross members are engaged with the offsets prior to the engagement of the tie members therewith.

ln Fig. i I illustrate the method of assembling in which the tic members are engaged withthe offsets prior to the engagement of the cross members therewith, the open coils et the tie members permitting the cross members being engaged or threaded upon the oilsets by rotation of the cross members.

With the parts thus connected, there are no substantial projections incident to the connections formed by the springs which would be likely to wear the upholstery.

My improved spring structure may be very economically 'produced and' is hi hly desirable as a filler for mattresses as t e springs are permanently connected and so as to secure the advantages of the full resilience thereof.

Having thus described my invent/ion, what I claim as new and desire to secure by Letters Patent, is

1. In a spring structure,the combination of spirall coiled body springs disposed in rows and aving end coils terminating in laterally disposed tie members and having substantially straight offsets of substantial length opposite said tie members, the tie member of one spring being loosely coiled abouty the offset of an adjacent spring, the coils of the tie member being open, the corresponding springs of adjacent rows being disposed with their offsets in alignment, and helically coiled spring cross members having open coils enhelically coiled spring cross members encircling the aligned offsets and having' coils thereof lying between the coils of the said tie members. l

3. In a spring structure, the combination of spirally coiled body springs disposed in rows and having offsets in their end coils, the terminals of the end coils having helical coils encircling the offsets of adjacent springs constituting tie members, the corresponding sprin of adjacent rows being disposed with their offsets in alignment, and helically ycoiled spring cross members having open coils encircling the aligned offsets and with coils thereof lying between the helical coils of the tie members and other coils embracing the 0E- setbetween the tie members and the ends of the offset. l

4. In a spring structure, the combination of spirally coiled body springs disposed in rows and having offsets in their end coils, the terminals of the end coils having helical coils encircling the offsets of adjacent springs constitnting tie members, the corresponding springs of adjacent rows being disposed with their offsets in alignment, and helically coiled spring cross members having open coils encircling the aligned offsets and with coils thereof lying between the helical coils of the tie members.

5. -In a spring structure, the-combination of spirally coiled body springs disposed in rows 'GEORGE A. spTAoKHoUsE.

an adjacent spring, the correi and having end coils with offsets thereimithe. i i" 

